In Katmandoo 3 there are two ways of adding data, through Importing and through the add page.
The add page is the best method if only a small number of changes are wanted, but for large amounts of data an import should be used.

While on the search page, there is an add button both underneath the Condition in the search menu and in the pages menu in the top right (the three bars), selecting this will take the system to the Add page.

Either way will go to the same location, they are just in multiple locations for convenience

While on the add page, by default there will be a series of fields to enter data into. Once the key data fields have been entered, hitting save will add it to the database

However if there has been a factor (or multiple factors) created for the page, then there will be extra fields to enter data into.

If it was successfully added to the database the system will redirect to the View page for what was just added